cleaning up the slant six head

Thanks Bill, all good info and interesting stuff. That is a possibility for the future of this engine just cause of the neat factor.

Not sure if you are aware though that my 225 is cradled in between the legs of a 6000 pound 4 wheel drive truck. My build is not for performance in that I would like to see it go fast, my build is for reliability/efficiency, I would like to make the engine operate as efficiently as is possible, its just a toy, something I have been playing with.

I do as mentioned like the idea of turbo, I would prob. be the only guy with that set-up in a vehicle such as mine and so I will keep all these facts in mind.

Just to throw it out there from what I have been reading on this site and slant org site installing larger valves in my head would be a complete waste of time/money but that confuses me cause I know the faster I can get air/fuel into the chamber and then get it out the better or more efficiently the engine will run so why not up-grade the valve size seeing how there is room for a larger valve?

Is it because the chambers leading up into the valves within the head just wont support or wont accommodate the extra fuel/air flow?

Yeah the DZ engine ran 2.02s but that was a performance engine from the get-go whilst the standard 327/350 ect were runnin 1.94 for many years on their 4 barrel cars/trucks and still kickin ***.

So if the cylinder jug diam on /6 is essentially same diam as the 302 than whats the drawback with the head to jug match?

I am confused but trying to understand better so that I can come up with my own conclusion that the / head on the 225 is a futile endeavor.